saturating the air with [SSID] at high dB across all channels absolutely will work, it compels the operator of [SSID] to turn it off and buy another router.
That’s not how 802.11 works. If your device can’t connect to a given BSSID that’s broadcasting an SSID it wants, it will put that BSSID on an ignore list and try the next one, whatever the received signal strength.
You can of course saturate the entire spectrum, but that breaks every network, not just the SSIDs you’re "waging war" against, and will probably get you a visit by the FCC sooner or later.
Maybe you could broadcast thousands of spoofed BSSIDs; I have no idea about the legality of that, and the legitimate operator of the SSID might not find that too funny and take legal action against you as well, as that would be pretty transparent denial of service on a public band.
yes you have it right. this has been done in the past, and can still be done.
legally, you dont want to do it. i have had experiences with seeing my SSID coming from a router that is not mine, and the nieghbor basically said effoff ill do what i want. in that case i did what i want as well.
What’s the problem with your neighbor using "your" SSID?
It’s not like anybody can "own" an SSID name, and if you’re using WPA, the only effect would be a few milliseconds longer of initial connection time per device.
Actively running a DoS against your neighbor might or might not be legal, but it sure is petty (and given the above, unnecessary).
But it will not work.